caching/vendor/knative.dev/hack/library.sh

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#!/usr/bin/env bash
# Copyright 2018 The Knative Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This is a collection of useful bash functions and constants, intended
# to be used in test scripts and the like. It doesn't do anything when
# called from command line.
# GCP project where all tests related resources live
readonly KNATIVE_TESTS_PROJECT=knative-tests
# Conveniently set GOPATH if unset
if [[ ! -v GOPATH ]]; then
export GOPATH="$(go env GOPATH)"
if [[ -z "${GOPATH}" ]]; then
echo "WARNING: GOPATH not set and go binary unable to provide it"
fi
fi
# Useful environment variables
[[ -v PROW_JOB_ID ]] && IS_PROW=1 || IS_PROW=0
readonly IS_PROW
[[ ! -v REPO_ROOT_DIR ]] && REPO_ROOT_DIR="$(git rev-parse --show-toplevel)"
readonly REPO_ROOT_DIR
readonly REPO_NAME="$(basename ${REPO_ROOT_DIR})"
# Useful flags about the current OS
IS_LINUX=0
IS_OSX=0
IS_WINDOWS=0
case "${OSTYPE}" in
darwin*) IS_OSX=1 ;;
linux*) IS_LINUX=1 ;;
msys*) IS_WINDOWS=1 ;;
*) echo "** Internal error in library.sh, unknown OS '${OSTYPE}'" ; exit 1 ;;
esac
readonly IS_LINUX
readonly IS_OSX
readonly IS_WINDOWS
# Set ARTIFACTS to an empty temp dir if unset
if [[ -z "${ARTIFACTS:-}" ]]; then
export ARTIFACTS="$(mktemp -d)"
fi
# On a Prow job, redirect stderr to stdout so it's synchronously added to log
(( IS_PROW )) && exec 2>&1
# Print error message and exit 1
# Parameters: $1..$n - error message to be displayed
function abort() {
echo "error: $*"
exit 1
}
# Display a box banner.
# Parameters: $1 - character to use for the box.
# $2 - banner message.
function make_banner() {
local msg="$1$1$1$1 $2 $1$1$1$1"
local border="${msg//[-0-9A-Za-z _.,\/()\']/$1}"
echo -e "${border}\n${msg}\n${border}"
# TODO(adrcunha): Remove once logs have timestamps on Prow
# For details, see https://github.com/kubernetes/test-infra/issues/10100
echo -e "$1$1$1$1 $(TZ='America/Los_Angeles' date)\n${border}"
}
# Simple header for logging purposes.
function header() {
local upper="$(echo $1 | tr a-z A-Z)"
make_banner "=" "${upper}"
}
# Simple subheader for logging purposes.
function subheader() {
make_banner "-" "$1"
}
# Simple warning banner for logging purposes.
function warning() {
make_banner "!" "$1"
}
# Checks whether the given function exists.
function function_exists() {
[[ "$(type -t $1)" == "function" ]]
}
# GitHub Actions aware output grouping.
function group() {
# End the group is there is already a group.
if [ -z ${__GROUP_TRACKER+x} ]; then
export __GROUP_TRACKER="grouping"
trap end_group EXIT
else
end_group
fi
# Start a new group.
start_group "$@"
}
# GitHub Actions aware output grouping.
function start_group() {
if [[ -n ${GITHUB_WORKFLOW:-} ]]; then
echo "::group::$@"
trap end_group EXIT
else
echo "--- $@"
fi
}
# GitHub Actions aware end of output grouping.
function end_group() {
if [[ -n ${GITHUB_WORKFLOW:-} ]]; then
echo "::endgroup::"
fi
}
# Waits until the given object doesn't exist.
# Parameters: $1 - the kind of the object.
# $2 - object's name.
# $3 - namespace (optional).
function wait_until_object_does_not_exist() {
local KUBECTL_ARGS="get $1 $2"
local DESCRIPTION="$1 $2"
if [[ -n $3 ]]; then
KUBECTL_ARGS="get -n $3 $1 $2"
DESCRIPTION="$1 $3/$2"
fi
echo -n "Waiting until ${DESCRIPTION} does not exist"
for i in {1..150}; do # timeout after 5 minutes
if ! kubectl ${KUBECTL_ARGS} > /dev/null 2>&1; then
echo -e "\n${DESCRIPTION} does not exist"
return 0
fi
echo -n "."
sleep 2
done
echo -e "\n\nERROR: timeout waiting for ${DESCRIPTION} not to exist"
kubectl ${KUBECTL_ARGS}
return 1
}
# Waits until all pods are running in the given namespace.
# This function handles some edge cases that `kubectl wait` does not support,
# and it provides nice debug info on the state of the pod if it failed,
# thats why we have this long bash function instead of using `kubectl wait`.
# Parameters: $1 - namespace.
function wait_until_pods_running() {
echo -n "Waiting until all pods in namespace $1 are up"
local failed_pod=""
for i in {1..150}; do # timeout after 5 minutes
# List all pods. Ignore Terminating pods as those have either been replaced through
# a deployment or terminated on purpose (through chaosduck for example).
local pods="$(kubectl get pods --no-headers -n $1 | grep -v Terminating)"
# All pods must be running (ignore ImagePull error to allow the pod to retry)
local not_running_pods=$(echo "${pods}" | grep -v Running | grep -v Completed | grep -v ErrImagePull | grep -v ImagePullBackOff)
if [[ -n "${pods}" ]] && [[ -z "${not_running_pods}" ]]; then
# All Pods are running or completed. Verify the containers on each Pod.
local all_ready=1
while read pod ; do
local status=(`echo -n ${pod} | cut -f2 -d' ' | tr '/' ' '`)
# Set this Pod as the failed_pod. If nothing is wrong with it, then after the checks, set
# failed_pod to the empty string.
failed_pod=$(echo -n "${pod}" | cut -f1 -d' ')
# All containers must be ready
[[ -z ${status[0]} ]] && all_ready=0 && break
[[ -z ${status[1]} ]] && all_ready=0 && break
[[ ${status[0]} -lt 1 ]] && all_ready=0 && break
[[ ${status[1]} -lt 1 ]] && all_ready=0 && break
[[ ${status[0]} -ne ${status[1]} ]] && all_ready=0 && break
# All the tests passed, this is not a failed pod.
failed_pod=""
done <<< "$(echo "${pods}" | grep -v Completed)"
if (( all_ready )); then
echo -e "\nAll pods are up:\n${pods}"
return 0
fi
elif [[ -n "${not_running_pods}" ]]; then
# At least one Pod is not running, just save the first one's name as the failed_pod.
failed_pod="$(echo "${not_running_pods}" | head -n 1 | cut -f1 -d' ')"
fi
echo -n "."
sleep 2
done
echo -e "\n\nERROR: timeout waiting for pods to come up\n${pods}"
if [[ -n "${failed_pod}" ]]; then
echo -e "\n\nFailed Pod (data in YAML format) - ${failed_pod}\n"
kubectl -n $1 get pods "${failed_pod}" -oyaml
echo -e "\n\nPod Logs\n"
kubectl -n $1 logs "${failed_pod}" --all-containers
fi
return 1
}
# Waits until all batch jobs complete in the given namespace.
# Parameters: $1 - namespace.
function wait_until_batch_job_complete() {
echo "Waiting until all batch jobs in namespace $1 run to completion."
kubectl wait job --for=condition=Complete --all -n "$1" --timeout=5m || return 1
}
# Waits until the given service has an external address (IP/hostname).
# Parameters: $1 - namespace.
# $2 - service name.
function wait_until_service_has_external_ip() {
echo -n "Waiting until service $2 in namespace $1 has an external address (IP/hostname)"
for i in {1..150}; do # timeout after 15 minutes
local ip=$(kubectl get svc -n $1 $2 -o jsonpath="{.status.loadBalancer.ingress[0].ip}")
if [[ -n "${ip}" ]]; then
echo -e "\nService $2.$1 has IP $ip"
return 0
fi
local hostname=$(kubectl get svc -n $1 $2 -o jsonpath="{.status.loadBalancer.ingress[0].hostname}")
if [[ -n "${hostname}" ]]; then
echo -e "\nService $2.$1 has hostname $hostname"
return 0
fi
echo -n "."
sleep 6
done
echo -e "\n\nERROR: timeout waiting for service $2.$1 to have an external address"
kubectl get pods -n $1
return 1
}
# Waits until the given service has an external address (IP/hostname) that allow HTTP connections.
# Parameters: $1 - namespace.
# $2 - service name.
function wait_until_service_has_external_http_address() {
local ns=$1
local svc=$2
local sleep_seconds=6
local attempts=150
echo -n "Waiting until service $ns/$svc has an external address (IP/hostname)"
for attempt in $(seq 1 $attempts); do # timeout after 15 minutes
local address=$(kubectl get svc $svc -n $ns -o jsonpath="{.status.loadBalancer.ingress[0].ip}")
if [[ -n "${address}" ]]; then
echo -e "Service $ns/$svc has IP $address"
else
address=$(kubectl get svc $svc -n $ns -o jsonpath="{.status.loadBalancer.ingress[0].hostname}")
if [[ -n "${address}" ]]; then
echo -e "Service $ns/$svc has hostname $address"
fi
fi
if [[ -n "${address}" ]]; then
local status=$(curl -s -o /dev/null -w "%{http_code}" http://"${address}")
if [[ $status != "" && $status != "000" ]]; then
echo -e "$address is ready: prober observed HTTP $status"
return 0
else
echo -e "$address is not ready: prober observed HTTP $status"
fi
fi
echo -n "."
sleep $sleep_seconds
done
echo -e "\n\nERROR: timeout waiting for service $ns/$svc to have an external HTTP address"
return 1
}
# Waits for the endpoint to be routable.
# Parameters: $1 - External ingress IP address.
# $2 - cluster hostname.
function wait_until_routable() {
echo -n "Waiting until cluster $2 at $1 has a routable endpoint"
for i in {1..150}; do # timeout after 5 minutes
local val=$(curl -H "Host: $2" "http://$1" 2>/dev/null)
if [[ -n "$val" ]]; then
echo -e "\nEndpoint is now routable"
return 0
fi
echo -n "."
sleep 2
done
echo -e "\n\nERROR: Timed out waiting for endpoint to be routable"
return 1
}
# Returns the name of the first pod of the given app.
# Parameters: $1 - app name.
# $2 - namespace (optional).
function get_app_pod() {
local pods=($(get_app_pods $1 $2))
echo "${pods[0]}"
}
# Returns the name of all pods of the given app.
# Parameters: $1 - app name.
# $2 - namespace (optional).
function get_app_pods() {
local namespace=""
[[ -n $2 ]] && namespace="-n $2"
kubectl get pods ${namespace} --selector=app=$1 --output=jsonpath="{.items[*].metadata.name}"
}
# Capitalize the first letter of each word.
# Parameters: $1..$n - words to capitalize.
function capitalize() {
local capitalized=()
for word in $@; do
local initial="$(echo ${word:0:1}| tr 'a-z' 'A-Z')"
capitalized+=("${initial}${word:1}")
done
echo "${capitalized[@]}"
}
# Dumps pod logs for the given app.
# Parameters: $1 - app name.
# $2 - namespace.
function dump_app_logs() {
echo ">>> ${REPO_NAME_FORMATTED} $1 logs:"
for pod in $(get_app_pods "$1" "$2")
do
echo ">>> Pod: $pod"
kubectl -n "$2" logs "$pod" --all-containers
done
}
# Run a command through tee and capture its output.
# Parameters: $1 - file where the output will be stored.
# $2... - command to run.
function capture_output() {
local report="$1"
shift
"$@" 2>&1 | tee "${report}"
local failed=( ${PIPESTATUS[@]} )
[[ ${failed[0]} -eq 0 ]] && failed=${failed[1]} || failed=${failed[0]}
return ${failed}
}
# Print failed step, which could be highlighted by spyglass.
# Parameters: $1...n - description of step that failed
function step_failed() {
local spyglass_token="Step failed:"
echo "${spyglass_token} $@"
}
# Create a temporary file with the given extension in a way that works on both Linux and macOS.
# Parameters: $1 - file name without extension (e.g. 'myfile_XXXX')
# $2 - file extension (e.g. 'xml')
function mktemp_with_extension() {
local nameprefix
local fullname
nameprefix="$(mktemp $1)"
fullname="${nameprefix}.$2"
mv ${nameprefix} ${fullname}
echo ${fullname}
}
# Create a JUnit XML for a test.
# Parameters: $1 - check class name as an identifier (e.g. BuildTests)
# $2 - check name as an identifier (e.g., GoBuild)
# $3 - failure message (can contain newlines), optional (means success)
function create_junit_xml() {
local xml
xml="$(mktemp_with_extension "${ARTIFACTS}"/junit_XXXXXXXX xml)"
echo "JUnit file ${xml} is created for reporting the test result"
run_kntest junit --suite="$1" --name="$2" --err-msg="$3" --dest="${xml}" || return 1
}
# Runs a go test and generate a junit summary.
# Parameters: $1... - parameters to go test
function report_go_test() {
local go_test_args=( "$@" )
# Install gotestsum if necessary.
run_go_tool gotest.tools/gotestsum gotestsum --help > /dev/null 2>&1
# Capture the test output to the report file.
local report
report="$(mktemp)"
local xml
xml="$(mktemp_with_extension "${ARTIFACTS}"/junit_XXXXXXXX xml)"
echo "Running go test with args: ${go_test_args[*]}"
capture_output "${report}" gotestsum --format "${GO_TEST_VERBOSITY:-testname}" \
--junitfile "${xml}" --junitfile-testsuite-name relative --junitfile-testcase-classname relative \
-- "${go_test_args[@]}"
local failed=$?
echo "Finished run, return code is ${failed}"
echo "XML report written to ${xml}"
if [[ -n "$(grep '<testsuites></testsuites>' "${xml}")" ]]; then
# XML report is empty, something's wrong; use the output as failure reason
create_junit_xml _go_tests "GoTests" "$(cat "${report}")"
fi
# Capture and report any race condition errors
local race_errors
race_errors="$(sed -n '/^WARNING: DATA RACE$/,/^==================$/p' "${report}")"
create_junit_xml _go_tests "DataRaceAnalysis" "${race_errors}"
if (( ! IS_PROW )); then
# Keep the suffix, so files are related.
local logfile=${xml/junit_/go_test_}
logfile=${logfile/.xml/.log}
cp "${report}" "${logfile}"
echo "Test log written to ${logfile}"
fi
return ${failed}
}
# Install Knative Serving in the current cluster.
# Parameters: $1 - Knative Serving crds manifest.
# $2 - Knative Serving core manifest.
# $3 - Knative net-istio manifest.
function start_knative_serving() {
header "Starting Knative Serving"
subheader "Installing Knative Serving"
echo "Installing Serving CRDs from $1"
kubectl apply -f "$1"
echo "Installing Serving core components from $2"
kubectl apply -f "$2"
echo "Installing net-istio components from $3"
kubectl apply -f "$3"
wait_until_pods_running knative-serving || return 1
}
# Install the stable release Knative/serving in the current cluster.
# Parameters: $1 - Knative Serving version number, e.g. 0.6.0.
function start_release_knative_serving() {
start_knative_serving "https://storage.googleapis.com/knative-releases/serving/previous/v$1/serving-crds.yaml" \
"https://storage.googleapis.com/knative-releases/serving/previous/v$1/serving-core.yaml" \
"https://storage.googleapis.com/knative-releases/net-istio/previous/v$1/net-istio.yaml"
}
# Install the latest stable Knative Serving in the current cluster.
function start_latest_knative_serving() {
start_knative_serving "${KNATIVE_SERVING_RELEASE_CRDS}" "${KNATIVE_SERVING_RELEASE_CORE}" "${KNATIVE_NET_ISTIO_RELEASE}"
}
# Install Knative Eventing in the current cluster.
# Parameters: $1 - Knative Eventing manifest.
function start_knative_eventing() {
header "Starting Knative Eventing"
subheader "Installing Knative Eventing"
echo "Installing Eventing CRDs from $1"
kubectl apply --selector knative.dev/crd-install=true -f "$1"
echo "Installing the rest of eventing components from $1"
kubectl apply -f "$1"
wait_until_pods_running knative-eventing || return 1
}
# Install the stable release Knative/eventing in the current cluster.
# Parameters: $1 - Knative Eventing version number, e.g. 0.6.0.
function start_release_knative_eventing() {
start_knative_eventing "https://storage.googleapis.com/knative-releases/eventing/previous/v$1/eventing.yaml"
}
# Install the latest stable Knative Eventing in the current cluster.
function start_latest_knative_eventing() {
start_knative_eventing "${KNATIVE_EVENTING_RELEASE}"
}
# Install Knative Eventing extension in the current cluster.
# Parameters: $1 - Knative Eventing extension manifest.
# $2 - Namespace to look for ready pods into
function start_knative_eventing_extension() {
header "Starting Knative Eventing Extension"
echo "Installing Extension CRDs from $1"
kubectl apply -f "$1"
wait_until_pods_running "$2" || return 1
}
# Install the stable release of eventing extension sugar controller in the current cluster.
# Parameters: $1 - Knative Eventing release version, e.g. 0.16.0
function start_release_eventing_sugar_controller() {
start_knative_eventing_extension "https://storage.googleapis.com/knative-releases/eventing/previous/v$1/eventing-sugar-controller.yaml" "knative-eventing"
}
# Install the sugar cotroller eventing extension
function start_latest_eventing_sugar_controller() {
start_knative_eventing_extension "${KNATIVE_EVENTING_SUGAR_CONTROLLER_RELEASE}" "knative-eventing"
}
# Run a go tool, installing it first if necessary.
# Parameters: $1 - tool package/dir for go get/install.
# $2 - tool to run.
# $3..$n - parameters passed to the tool.
function run_go_tool() {
local tool=$2
local install_failed=0
if [[ -z "$(which ${tool})" ]]; then
local action=get
[[ $1 =~ ^[\./].* ]] && action=install
# Avoid running `go get` from root dir of the repository, as it can change go.sum and go.mod files.
# See discussions in https://github.com/golang/go/issues/27643.
if [[ ${action} == "get" && $(pwd) == "${REPO_ROOT_DIR}" ]]; then
local temp_dir="$(mktemp -d)"
# Swallow the output as we are returning the stdout in the end.
pushd "${temp_dir}" > /dev/null 2>&1
GOFLAGS="" go ${action} "$1" || install_failed=1
popd > /dev/null 2>&1
else
GOFLAGS="" go ${action} "$1" || install_failed=1
fi
fi
(( install_failed )) && return ${install_failed}
shift 2
${tool} "$@"
}
# Add function call to trap
# Parameters: $1 - Function to call
# $2...$n - Signals for trap
function add_trap {
local cmd=$1
shift
for trap_signal in "$@"; do
local current_trap
current_trap="$(trap -p "$trap_signal" | cut -d\' -f2)"
local new_cmd="($cmd)"
[[ -n "${current_trap}" ]] && new_cmd="${current_trap};${new_cmd}"
trap -- "${new_cmd}" "$trap_signal"
done
}
# Update go deps.
# Parameters (parsed as flags):
# "--upgrade", bool, do upgrade.
# "--release <version>" used with upgrade. The release version to upgrade
# Knative components. ex: --release v0.18. Defaults to
# "master".
# Additional dependencies can be included in the upgrade by providing them in a
# global env var: FLOATING_DEPS
# --upgrade will set GOPROXY to direct unless it is already set.
function go_update_deps() {
cd "${REPO_ROOT_DIR}" || return 1
export GO111MODULE=on
export GOFLAGS=""
export GONOSUMDB="${GONOSUMDB:-},knative.dev/*"
export GONOPROXY="${GONOPROXY:-},knative.dev/*"
echo "=== Update Deps for Golang"
local UPGRADE=0
local VERSION="v9000.1" # release v9000 is so far in the future, it will always pick the default branch.
local DOMAIN="knative.dev"
while [[ $# -ne 0 ]]; do
parameter=$1
case ${parameter} in
--upgrade) UPGRADE=1 ;;
--release) shift; VERSION="$1" ;;
--domain) shift; DOMAIN="$1" ;;
*) abort "unknown option ${parameter}" ;;
esac
shift
done
if [[ $UPGRADE == 1 ]]; then
group "Upgrading to ${VERSION}"
FLOATING_DEPS+=( $(run_go_tool knative.dev/test-infra/buoy buoy float ${REPO_ROOT_DIR}/go.mod --release ${VERSION} --domain ${DOMAIN}) )
if [[ ${#FLOATING_DEPS[@]} > 0 ]]; then
echo "Floating deps to ${FLOATING_DEPS[@]}"
go get -d ${FLOATING_DEPS[@]}
else
echo "Nothing to upgrade."
fi
fi
group "Go mod tidy and vendor"
# Prune modules.
local orig_pipefail_opt=$(shopt -p -o pipefail)
set -o pipefail
go mod tidy 2>&1 | grep -v "ignoring symlink" || true
go mod vendor 2>&1 | grep -v "ignoring symlink" || true
eval "$orig_pipefail_opt"
group "Removing unwanted vendor files"
# Remove unwanted vendor files
find vendor/ \( -name "OWNERS" \
-o -name "OWNERS_ALIASES" \
-o -name "BUILD" \
-o -name "BUILD.bazel" \
-o -name "*_test.go" \) -exec rm -f {} +
export GOFLAGS=-mod=vendor
group "Updating licenses"
update_licenses third_party/VENDOR-LICENSE "./..."
group "Removing broken symlinks"
remove_broken_symlinks ./vendor
}
# Return the go module name of the current module.
# Intended to be used like:
# export MODULE_NAME=$(go_mod_module_name)
function go_mod_module_name() {
go mod graph | cut -d' ' -f 1 | grep -v '@' | head -1
}
# Return a GOPATH to a temp directory. Works around the out-of-GOPATH issues
# for k8s client gen mixed with go mod.
# Intended to be used like:
# export GOPATH=$(go_mod_gopath_hack)
function go_mod_gopath_hack() {
# Skip this if the directory is already checked out onto the GOPATH.
if [[ "${REPO_ROOT_DIR##$(go env GOPATH)}" != "$REPO_ROOT_DIR" ]]; then
go env GOPATH
return
fi
local TMP_DIR="$(mktemp -d)"
local TMP_REPO_PATH="${TMP_DIR}/src/$(go_mod_module_name)"
mkdir -p "$(dirname "${TMP_REPO_PATH}")" && ln -s "${REPO_ROOT_DIR}" "${TMP_REPO_PATH}"
echo "${TMP_DIR}"
}
# Run kntest tool, error out and ask users to install it if it's not currently installed.
# Parameters: $1..$n - parameters passed to the tool.
function run_kntest() {
if [[ ! -x "$(command -v kntest)" ]]; then
echo "--- FAIL: kntest not installed, please clone knative test-infra repo and run \`go install ./kntest/cmd/kntest\` to install it"; return 1;
fi
kntest "$@"
}
# Run go-licenses to update licenses.
# Parameters: $1 - output file, relative to repo root dir.
# $2 - directory to inspect.
function update_licenses() {
cd "${REPO_ROOT_DIR}" || return 1
local dst=$1
local dir=$2
shift
run_go_tool github.com/google/go-licenses go-licenses save "${dir}" --save_path="${dst}" --force || \
{ echo "--- FAIL: go-licenses failed to update licenses"; return 1; }
# Hack to make sure directories retain write permissions after save. This
# can happen if the directory being copied is a Go module.
# See https://github.com/google/go-licenses/issues/11
chmod -R +w "${dst}"
}
# Run go-licenses to check for forbidden licenses.
function check_licenses() {
# Check that we don't have any forbidden licenses.
run_go_tool github.com/google/go-licenses go-licenses check "${REPO_ROOT_DIR}/..." || \
{ echo "--- FAIL: go-licenses failed the license check"; return 1; }
}
# Return whether the given parameter is an integer.
# Parameters: $1 - integer to check
function is_int() {
[[ -n $1 && $1 =~ ^[0-9]+$ ]]
}
# Return whether the given parameter is the knative release/nightly GCF.
# Parameters: $1 - full GCR name, e.g. gcr.io/knative-foo-bar
function is_protected_gcr() {
[[ -n $1 && $1 =~ ^gcr.io/knative-(releases|nightly)/?$ ]]
}
# Return whether the given parameter is any cluster under ${KNATIVE_TESTS_PROJECT}.
# Parameters: $1 - Kubernetes cluster context (output of kubectl config current-context)
function is_protected_cluster() {
# Example: gke_knative-tests_us-central1-f_prow
[[ -n $1 && $1 =~ ^gke_${KNATIVE_TESTS_PROJECT}_us\-[a-zA-Z0-9]+\-[a-z]+_[a-z0-9\-]+$ ]]
}
# Return whether the given parameter is ${KNATIVE_TESTS_PROJECT}.
# Parameters: $1 - project name
function is_protected_project() {
[[ -n $1 && "$1" == "${KNATIVE_TESTS_PROJECT}" ]]
}
# Remove symlinks in a path that are broken or lead outside the repo.
# Parameters: $1 - path name, e.g. vendor
function remove_broken_symlinks() {
for link in $(find $1 -type l); do
# Remove broken symlinks
if [[ ! -e ${link} ]]; then
unlink ${link}
continue
fi
# Get canonical path to target, remove if outside the repo
local target="$(ls -l ${link})"
target="${target##* -> }"
[[ ${target} == /* ]] || target="./${target}"
target="$(cd `dirname "${link}"` && cd "${target%/*}" && echo "$PWD"/"${target##*/}")"
if [[ ${target} != *github.com/knative/* && ${target} != *knative.dev/* ]]; then
unlink "${link}"
continue
fi
done
}
# Returns the canonical path of a filesystem object.
# Parameters: $1 - path to return in canonical form
# $2 - base dir for relative links; optional, defaults to current
function get_canonical_path() {
# We don't use readlink because it's not available on every platform.
local path=$1
local pwd=${2:-.}
[[ ${path} == /* ]] || path="${pwd}/${path}"
echo "$(cd "${path%/*}" && echo "$PWD"/"${path##*/}")"
}
# List changed files in the current PR.
# This is implemented as a function so it can be mocked in unit tests.
# It will fail if a file name ever contained a newline character (which is bad practice anyway)
function list_changed_files() {
if [[ -v PULL_BASE_SHA ]] && [[ -v PULL_PULL_SHA ]]; then
# Avoid warning when there are more than 1085 files renamed:
# https://stackoverflow.com/questions/7830728/warning-on-diff-renamelimit-variable-when-doing-git-push
git config diff.renames 0
git --no-pager diff --name-only "${PULL_BASE_SHA}".."${PULL_PULL_SHA}"
else
# Do our best if not running in Prow
git diff --name-only HEAD^
fi
}
# Returns the current branch.
function current_branch() {
local branch_name=""
# Get the branch name from Prow's env var, see https://github.com/kubernetes/test-infra/blob/master/prow/jobs.md.
# Otherwise, try getting the current branch from git.
(( IS_PROW )) && branch_name="${PULL_BASE_REF:-}"
[[ -z "${branch_name}" ]] && branch_name="$(git rev-parse --abbrev-ref HEAD)"
echo "${branch_name}"
}
# Returns whether the current branch is a release branch.
function is_release_branch() {
[[ $(current_branch) =~ ^release-[0-9\.]+$ ]]
}
# Returns the URL to the latest manifest for the given Knative project.
# Parameters: $1 - repository name of the given project
# $2 - name of the yaml file, without extension
function get_latest_knative_yaml_source() {
local repo_name="$1"
local yaml_name="$2"
# If it's a release branch, the yaml source URL should point to a specific version.
if is_release_branch; then
# Extract the release major&minor version from the branch name.
local branch_name="$(current_branch)"
local major_minor="${branch_name##release-}"
# Find the latest release manifest with the same major&minor version.
local yaml_source_path="$(
gsutil ls "gs://knative-releases/${repo_name}/previous/v${major_minor}.*/${yaml_name}.yaml" 2> /dev/null \
| sort \
| tail -n 1 \
| cut -b6-)"
# The version does exist, return it.
if [[ -n "${yaml_source_path}" ]]; then
echo "https://storage.googleapis.com/${yaml_source_path}"
return
fi
# Otherwise, fall back to nightly.
fi
echo "https://storage.googleapis.com/knative-nightly/${repo_name}/latest/${yaml_name}.yaml"
}
function shellcheck_new_files() {
declare -a array_of_files
local failed=0
if [ -z "$SHELLCHECK_IGNORE_FILES" ]; then
SHELLCHECK_IGNORE_FILES="^vendor/"
fi
readarray -t array_of_files < <(list_changed_files)
for filename in "${array_of_files[@]}"; do
if echo "${filename}" | grep -q "$SHELLCHECK_IGNORE_FILES"; then
continue
fi
if file "${filename}" | grep -q "shell script"; then
# SC1090 is "Can't follow non-constant source"; we will scan files individually
if shellcheck -e SC1090 "${filename}"; then
echo "--- PASS: shellcheck on ${filename}"
else
echo "--- FAIL: shellcheck on ${filename}"
failed=1
fi
fi
done
if [[ ${failed} -eq 1 ]]; then
fail_script "shellcheck failures"
fi
}
function latest_version() {
# This function works "best effort" and works on Prow but not necessarily locally.
# The problem is finding the latest release. If a release occurs on the same commit which
# was branched from main, then the tag will be an ancestor to any commit derived from main.
# That was the original logic. Additionally in a release branch, the tag is always an ancestor.
# However, if the release commit ends up not the first commit from main, then the tag is not
# an ancestor of main, so we can't use `git describe` to find the most recent versioned tag. So
# we just sort all the tags and find the newest versioned one.
# But when running locally, we cannot(?) know if the current branch is a fork of main or a fork
# of a release branch. That's where this function will malfunction when the last release did not
# occur on the first commit -- it will try to run the upgrade tests from an older version instead
# of the most recent release.
# Workarounds include:
# Tag the first commit of the release branch. Say release-0.75 released v0.75.0 from the second commit
# Then tag the first commit in common between main and release-0.75 with `v0.75`.
# Always name your local fork master or main.
if [ $(current_branch) = "master" ] || [ $(current_branch) = "main" ]; then
# For main branch, simply use git tag without major version, this will work even
# if the release tag is not in the main
git tag -l "v[0-9]*" | sort -r --version-sort | head -n1
else
local semver=$(git describe --match "v[0-9]*" --abbrev=0)
local major_minor=$(echo "$semver" | cut -d. -f1-2)
# Get the latest patch release for the major minor
git tag -l "${major_minor}*" | sort -r --version-sort | head -n1
fi
}
# Initializations that depend on previous functions.
# These MUST come last.
readonly _TEST_INFRA_SCRIPTS_DIR="$(dirname $(get_canonical_path "${BASH_SOURCE[0]}"))"
readonly REPO_NAME_FORMATTED="Knative $(capitalize "${REPO_NAME//-/ }")"
# Public latest nightly or release yaml files.
readonly KNATIVE_SERVING_RELEASE_CRDS="$(get_latest_knative_yaml_source "serving" "serving-crds")"
readonly KNATIVE_SERVING_RELEASE_CORE="$(get_latest_knative_yaml_source "serving" "serving-core")"
readonly KNATIVE_NET_ISTIO_RELEASE="$(get_latest_knative_yaml_source "net-istio" "net-istio")"
readonly KNATIVE_EVENTING_RELEASE="$(get_latest_knative_yaml_source "eventing" "eventing")"
readonly KNATIVE_EVENTING_SUGAR_CONTROLLER_RELEASE="$(get_latest_knative_yaml_source "eventing" "eventing-sugar-controller")"